The links to the 3 videos at
are broken for me under windows explorer running under windows 7. The error message reads, "Navigation to the webpage was canceled" The videos work fine using chrome on the same system.
Also, the landing page that you are using for your adwords campaign which show up in gmail does not give enough of the right kind of info at first glance. This design issue dramatically increases bounce rate. I may be able to find the time to help you if you are interested in dramatically reducing bounce rates. This means that your customer acquisition cost goes way down.
Contact: MikeSeiler (at) aol (dot) com
P.S. At the very least change your tag line to "Creating HTML UI prototypes collaboratively"